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39c32a63e0
This commit only moves files and updates the `#include` paths appropriately. Change-Id: I9d430bd34af617c943a6c6570c9a3c27169eaf1b
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
// Copyright 2014, ARM Limited
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stdlib.h>
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#include "test-runner.h"
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#include "a64/decoder-a64.h"
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#include "a64/disasm-a64.h"
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#define TEST(name) TEST_(FUZZ_##name)
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namespace vixl {
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TEST(decoder) {
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// Feed noise into the decoder to check that it doesn't crash.
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// 43 million = ~1% of the instruction space.
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static const int instruction_count = 43 * 1024 * 1024;
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uint16_t seed[3] = {1, 2, 3};
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seed48(seed);
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Decoder decoder;
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Instruction buffer[kInstructionSize];
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for (int i = 0; i < instruction_count; i++) {
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uint32_t instr = static_cast<uint32_t>(mrand48());
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buffer->SetInstructionBits(instr);
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decoder.Decode(buffer);
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}
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}
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TEST(disasm) {
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// Feed noise into the disassembler to check that it doesn't crash.
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// 9 million = ~0.2% of the instruction space.
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static const int instruction_count = 9 * 1024 * 1024;
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uint16_t seed[3] = {42, 43, 44};
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seed48(seed);
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Decoder decoder;
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Disassembler disasm;
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Instruction buffer[kInstructionSize];
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decoder.AppendVisitor(&disasm);
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for (int i = 0; i < instruction_count; i++) {
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uint32_t instr = static_cast<uint32_t>(mrand48());
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buffer->SetInstructionBits(instr);
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decoder.Decode(buffer);
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}
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}
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#if 0
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// These tests are commented out as they take a long time to run, causing the
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// test script to timeout. After enabling them, they are best run manually:
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//
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// test-runner_sim FUZZ_decoder_pedantic
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// test-runner_sim FUZZ_disasm_pedantic
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//
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// or test-runner_sim_g for debug builds.
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TEST(decoder_pedantic) {
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// Test the entire instruction space.
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Decoder decoder;
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Instruction buffer[kInstructionSize];
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for (uint64_t i = 0; i < (UINT64_C(1) << 32); i++) {
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if ((i & 0xffffff) == 0) {
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fprintf(stderr, "0x%08" PRIx32 "\n", static_cast<uint32_t>(i));
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}
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buffer->SetInstructionBits(static_cast<uint32_t>(i));
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decoder.Decode(buffer);
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}
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}
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TEST(disasm_pedantic) {
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// Test the entire instruction space. Warning: takes about 30 minutes on a
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// high-end CPU.
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Decoder decoder;
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PrintDisassembler disasm(stdout);
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Instruction buffer[kInstructionSize];
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decoder.AppendVisitor(&disasm);
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for (uint64_t i = 0; i < (UINT64_C(1) << 32); i++) {
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if ((i & 0xffff) == 0) {
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fprintf(stderr, "0x%08" PRIx32 "\n", static_cast<uint32_t>(i));
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}
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buffer->SetInstructionBits(static_cast<uint32_t>(i));
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decoder.Decode(buffer);
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}
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}
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#endif
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} // namespace vixl
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